... ,XL,L,H,XH,L,H,XH, XXH HTD Types:3M,5M,8M,14M Types:T2.5,T5,T10,T20 Bore types: SB,TB,QD Timing pullyBritish Types: MXL,XL,L,H,XH,L,H,XH ... ,XXHHTD Types:3M,5M,8M,14MTypes:T2.5,T5,T10,T20Bore types: SB,TB,QDFeatures:1. Teeth Type: MXL,XL,L,H,XH,XXH,XXL ... ,SL9,SL12,SL,HTD:3M,5M,8M,14M,20M AND SO ON2. Metric ...